Specifications

44
Features & Benefits
Flexibility:
n
Power communications available
through a Relay Contact Card, Liebert
IntelliSlot
™
Web Card and Liebert
MultiLink
™
shutdown software.
n
Ultra-quiet performance with noise
levels below 54dB allows greater
l
atitude in where to place the unit.
n
L
arge and user-friendly LCD display
provides operating information in
twelve languages.
n
Up to three Liebert NX 20kVA or 30kVA
modules can be paralleled for capacity
and a fourth added for redundancy
without using a centralized controller
or centralized static switch.
n
For safe and convenient servicing of the
UPS, the Liebert NX includes a built-in
maintenance bypass. An optional
wrap-around maintenance bypass
cabinet is also available.
n
Easy servicing due to front accessibility
of critical components, self-diagnostics
an
d various monitoring options.
Lowest Total Cost Of Ownership:
n
Temperature-compensated battery
charging extends battery life.
n
Highest possible input power factor for
maximum efficiency.
n
Adjustable power walk-in from 5
seconds to 30 seconds, along with
reduced input current distortion and
po
wer factor correction, also enables
you to save money by reducing backup
generator sizing requirements.
n
The unit’s compact footprint requires
less floor space, leaving you with more
room for other equipment.
Higher Availability:
n
True online double conversion
technology corrects all types of power
fluctuations.
n
Advanced inverter control technology
provides the highest output power
quality.
n
Redundant power supply cords,
r
edundant cooling fans and highly
efficient cooling of critical components.
n
Minimized transfer to battery, reducing
the number of charging and discharging
cycles, due to the wider input voltage
window of +10 to -20% and a frequency
tolerance of 40Hz to 72Hz.
n
Compatibility with dual bus
synchronization system enables you to
transfer the load to an alternate power
source for maintenance activities.
n
High overload rating handles 125% for
10 min
u
tes, 150% for one minute and a
1000% overload for 10 milliseconds.
n
An intelligent battery management
al
g
or
ithm monitors the battery to
de
t
ec
t an
y p
r
e
mature battery failure.
Liebert NX UPS (10-30 kVA)
The Liebert NX is a true on-line, double conversion,
mi
d-sized, three-phase UPS system that delivers
complete, centralized power protection for mission-
critical systems. Designed to meet the high availability
po
wer needs of a wide variety of IT applications, the
Liebert NX combines compact size, capacities up to 30
kVA (parallel up to three 20 or 30kVA units for capacity
u
p to 60kVA or 90kVA, parallel up to four 20 or 30kVA
units for redundancy), advanced operating features
and low cost of ownership.
Liebert NX is
featured in this
Scenario:
Scenario D
7-10 Racks
Three Phase
p
age 14